drivers/infiniband/hw/bnxt_re/qplib_sp.c

   1 /*
   2  * Broadcom NetXtreme-E RoCE driver.
   3  *
   4  * Copyright (c) 2016 - 2017, Broadcom. All rights reserved.  The term
   5  * Broadcom refers to Broadcom Limited and/or its subsidiaries.
   6  *
   7  * This software is available to you under a choice of one of two
   8  * licenses.  You may choose to be licensed under the terms of the GNU
   9  * General Public License (GPL) Version 2, available from the file
  10  * COPYING in the main directory of this source tree, or the
  11  * BSD license below:
  12  *
  13  * Redistribution and use in source and binary forms, with or without
  14  * modification, are permitted provided that the following conditions
  15  * are met:
  16  *
  17  * 1. Redistributions of source code must retain the above copyright
  18  *    notice, this list of conditions and the following disclaimer.
  19  * 2. Redistributions in binary form must reproduce the above copyright
  20  *    notice, this list of conditions and the following disclaimer in
  21  *    the documentation and/or other materials provided with the
  22  *    distribution.
  23  *
  24  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS''
  25  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
  26  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  27  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS
  28  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  29  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  30  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
  31  * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
  32  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
  33  * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
  34  * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  35  *
  36  * Description: Slow Path Operators
  37  */
  38
  39 #define dev_fmt(fmt) "QPLIB: " fmt
  40
  41 #include <linux/interrupt.h>
  42 #include <linux/spinlock.h>
  43 #include <linux/sched.h>
  44 #include <linux/pci.h>
  45
  46 #include "roce_hsi.h"
  47
  48 #include "qplib_res.h"
  49 #include "qplib_rcfw.h"
  50 #include "qplib_sp.h"
  51
  52 const struct bnxt_qplib_gid bnxt_qplib_gid_zero = {{ 0, 0, 0, 0, 0, 0, 0, 0,
  53                                                      0, 0, 0, 0, 0, 0, 0, 0 } };
  54
  55 /* Device */
  56
  57 static void bnxt_qplib_query_version(struct bnxt_qplib_rcfw *rcfw,
  58                                      char *fw_ver)
  59 {
  60         struct cmdq_query_version req;
  61         struct creq_query_version_resp resp;
  62         u16 cmd_flags = 0;
  63         int rc = 0;
  64
  65         RCFW_CMD_PREP(req, QUERY_VERSION, cmd_flags);
  66
  67         rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
  68                                           (void *)&resp, NULL, 0);
  69         if (rc)
  70                 return;
  71         fw_ver[0] = resp.fw_maj;
  72         fw_ver[1] = resp.fw_minor;
  73         fw_ver[2] = resp.fw_bld;
  74         fw_ver[3] = resp.fw_rsvd;
  75 }
  76
  77 int bnxt_qplib_get_dev_attr(struct bnxt_qplib_rcfw *rcfw,
  78                             struct bnxt_qplib_dev_attr *attr, bool vf)
  79 {
  80         struct cmdq_query_func req;
  81         struct creq_query_func_resp resp;
  82         struct bnxt_qplib_rcfw_sbuf *sbuf;
  83         struct creq_query_func_resp_sb *sb;
  84         u16 cmd_flags = 0;
  85         u32 temp;
  86         u8 *tqm_alloc;
  87         int i, rc = 0;
  88
  89         RCFW_CMD_PREP(req, QUERY_FUNC, cmd_flags);
  90
  91         sbuf = bnxt_qplib_rcfw_alloc_sbuf(rcfw, sizeof(*sb));
  92         if (!sbuf) {
  93                 dev_err(&rcfw->pdev->dev,
  94                         "SP: QUERY_FUNC alloc side buffer failed\n");
  95                 return -ENOMEM;
  96         }
  97
  98         sb = sbuf->sb;
  99         req.resp_size = sizeof(*sb) / BNXT_QPLIB_CMDQE_UNITS;
 100         rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, (void *)&resp,
 101                                           (void *)sbuf, 0);
 102         if (rc)
 103                 goto bail;
 104
 105         /* Extract the context from the side buffer */
 106         attr->max_qp = le32_to_cpu(sb->max_qp);
 107         /* max_qp value reported by FW for PF doesn't include the QP1 for PF */
 108         if (!vf)
 109                 attr->max_qp += 1;
 110         attr->max_qp_rd_atom =
 111                 sb->max_qp_rd_atom > BNXT_QPLIB_MAX_OUT_RD_ATOM ?
 112                 BNXT_QPLIB_MAX_OUT_RD_ATOM : sb->max_qp_rd_atom;
 113         attr->max_qp_init_rd_atom =
 114                 sb->max_qp_init_rd_atom > BNXT_QPLIB_MAX_OUT_RD_ATOM ?
 115                 BNXT_QPLIB_MAX_OUT_RD_ATOM : sb->max_qp_init_rd_atom;
 116         attr->max_qp_wqes = le16_to_cpu(sb->max_qp_wr);
 117         /*
 118          * 128 WQEs needs to be reserved for the HW (8916). Prevent
 119          * reporting the max number
 120          */
 121         attr->max_qp_wqes -= BNXT_QPLIB_RESERVED_QP_WRS;
 122         attr->max_qp_sges = bnxt_qplib_is_chip_gen_p5(rcfw->res->cctx) ?
 123                             6 : sb->max_sge;
 124         attr->max_cq = le32_to_cpu(sb->max_cq);
 125         attr->max_cq_wqes = le32_to_cpu(sb->max_cqe);
 126         attr->max_cq_sges = attr->max_qp_sges;
 127         attr->max_mr = le32_to_cpu(sb->max_mr);
 128         attr->max_mw = le32_to_cpu(sb->max_mw);
 129
 130         attr->max_mr_size = le64_to_cpu(sb->max_mr_size);
 131         attr->max_pd = 64 * 1024;
 132         attr->max_raw_ethy_qp = le32_to_cpu(sb->max_raw_eth_qp);
 133         attr->max_ah = le32_to_cpu(sb->max_ah);
 134
 135         attr->max_fmr = le32_to_cpu(sb->max_fmr);
 136         attr->max_map_per_fmr = sb->max_map_per_fmr;
 137
 138         attr->max_srq = le16_to_cpu(sb->max_srq);
 139         attr->max_srq_wqes = le32_to_cpu(sb->max_srq_wr) - 1;
 140         attr->max_srq_sges = sb->max_srq_sge;
 141         attr->max_pkey = le32_to_cpu(sb->max_pkeys);
 142         /*
 143          * Some versions of FW reports more than 0xFFFF.
 144          * Restrict it for now to 0xFFFF to avoid
 145          * reporting trucated value
 146          */
 147         if (attr->max_pkey > 0xFFFF) {
 148                 /* ib_port_attr::pkey_tbl_len is u16 */
 149                 attr->max_pkey = 0xFFFF;
 150         }
 151
 152         attr->max_inline_data = le32_to_cpu(sb->max_inline_data);
 153         attr->l2_db_size = (sb->l2_db_space_size + 1) *
 154                             (0x01 << RCFW_DBR_BASE_PAGE_SHIFT);
 155         attr->max_sgid = le32_to_cpu(sb->max_gid);
 156
 157         bnxt_qplib_query_version(rcfw, attr->fw_ver);
 158
 159         for (i = 0; i < MAX_TQM_ALLOC_REQ / 4; i++) {
 160                 temp = le32_to_cpu(sb->tqm_alloc_reqs[i]);
 161                 tqm_alloc = (u8 *)&temp;
 162                 attr->tqm_alloc_reqs[i * 4] = *tqm_alloc;
 163                 attr->tqm_alloc_reqs[i * 4 + 1] = *(++tqm_alloc);
 164                 attr->tqm_alloc_reqs[i * 4 + 2] = *(++tqm_alloc);
 165                 attr->tqm_alloc_reqs[i * 4 + 3] = *(++tqm_alloc);
 166         }
 167
 168         attr->is_atomic = false;
 169 bail:
 170         bnxt_qplib_rcfw_free_sbuf(rcfw, sbuf);
 171         return rc;
 172 }
 173
 174 int bnxt_qplib_set_func_resources(struct bnxt_qplib_res *res,
 175                                   struct bnxt_qplib_rcfw *rcfw,
 176                                   struct bnxt_qplib_ctx *ctx)
 177 {
 178         struct cmdq_set_func_resources req;
 179         struct creq_set_func_resources_resp resp;
 180         u16 cmd_flags = 0;
 181         int rc = 0;
 182
 183         RCFW_CMD_PREP(req, SET_FUNC_RESOURCES, cmd_flags);
 184
 185         req.number_of_qp = cpu_to_le32(ctx->qpc_count);
 186         req.number_of_mrw = cpu_to_le32(ctx->mrw_count);
 187         req.number_of_srq =  cpu_to_le32(ctx->srqc_count);
 188         req.number_of_cq = cpu_to_le32(ctx->cq_count);
 189
 190         req.max_qp_per_vf = cpu_to_le32(ctx->vf_res.max_qp_per_vf);
 191         req.max_mrw_per_vf = cpu_to_le32(ctx->vf_res.max_mrw_per_vf);
 192         req.max_srq_per_vf = cpu_to_le32(ctx->vf_res.max_srq_per_vf);
 193         req.max_cq_per_vf = cpu_to_le32(ctx->vf_res.max_cq_per_vf);
 194         req.max_gid_per_vf = cpu_to_le32(ctx->vf_res.max_gid_per_vf);
 195
 196         rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
 197                                           (void *)&resp,
 198                                           NULL, 0);
 199         if (rc) {
 200                 dev_err(&res->pdev->dev, "Failed to set function resources\n");
 201         }
 202         return rc;
 203 }
 204
 205 /* SGID */
 206 int bnxt_qplib_get_sgid(struct bnxt_qplib_res *res,
 207                         struct bnxt_qplib_sgid_tbl *sgid_tbl, int index,
 208                         struct bnxt_qplib_gid *gid)
 209 {
 210         if (index >= sgid_tbl->max) {
 211                 dev_err(&res->pdev->dev,
 212                         "Index %d exceeded SGID table max (%d)\n",
 213                         index, sgid_tbl->max);
 214                 return -EINVAL;
 215         }
 216         memcpy(gid, &sgid_tbl->tbl[index].gid, sizeof(*gid));
 217         return 0;
 218 }
 219
 220 int bnxt_qplib_del_sgid(struct bnxt_qplib_sgid_tbl *sgid_tbl,
 221                         struct bnxt_qplib_gid *gid, u16 vlan_id, bool update)
 222 {
 223         struct bnxt_qplib_res *res = to_bnxt_qplib(sgid_tbl,
 224                                                    struct bnxt_qplib_res,
 225                                                    sgid_tbl);
 226         struct bnxt_qplib_rcfw *rcfw = res->rcfw;
 227         int index;
 228
 229         if (!sgid_tbl) {
 230                 dev_err(&res->pdev->dev, "SGID table not allocated\n");
 231                 return -EINVAL;
 232         }
 233         /* Do we need a sgid_lock here? */
 234         if (!sgid_tbl->active) {
 235                 dev_err(&res->pdev->dev, "SGID table has no active entries\n");
 236                 return -ENOMEM;
 237         }
 238         for (index = 0; index < sgid_tbl->max; index++) {
 239                 if (!memcmp(&sgid_tbl->tbl[index].gid, gid, sizeof(*gid)) &&
 240                     vlan_id == sgid_tbl->tbl[index].vlan_id)
 241                         break;
 242         }
 243         if (index == sgid_tbl->max) {
 244                 dev_warn(&res->pdev->dev, "GID not found in the SGID table\n");
 245                 return 0;
 246         }
 247         /* Remove GID from the SGID table */
 248         if (update) {
 249                 struct cmdq_delete_gid req;
 250                 struct creq_delete_gid_resp resp;
 251                 u16 cmd_flags = 0;
 252                 int rc;
 253
 254                 RCFW_CMD_PREP(req, DELETE_GID, cmd_flags);
 255                 if (sgid_tbl->hw_id[index] == 0xFFFF) {
 256                         dev_err(&res->pdev->dev,
 257                                 "GID entry contains an invalid HW id\n");
 258                         return -EINVAL;
 259                 }
 260                 req.gid_index = cpu_to_le16(sgid_tbl->hw_id[index]);
 261                 rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
 262                                                   (void *)&resp, NULL, 0);
 263                 if (rc)
 264                         return rc;
 265         }
 266         memcpy(&sgid_tbl->tbl[index].gid, &bnxt_qplib_gid_zero,
 267                sizeof(bnxt_qplib_gid_zero));
 268         sgid_tbl->tbl[index].vlan_id = 0xFFFF;
 269         sgid_tbl->vlan[index] = 0;
 270         sgid_tbl->active--;
 271         dev_dbg(&res->pdev->dev,
 272                 "SGID deleted hw_id[0x%x] = 0x%x active = 0x%x\n",
 273                  index, sgid_tbl->hw_id[index], sgid_tbl->active);
 274         sgid_tbl->hw_id[index] = (u16)-1;
 275
 276         /* unlock */
 277         return 0;
 278 }
 279
 280 int bnxt_qplib_add_sgid(struct bnxt_qplib_sgid_tbl *sgid_tbl,
 281                         struct bnxt_qplib_gid *gid, u8 *smac, u16 vlan_id,
 282                         bool update, u32 *index)
 283 {
 284         struct bnxt_qplib_res *res = to_bnxt_qplib(sgid_tbl,
 285                                                    struct bnxt_qplib_res,
 286                                                    sgid_tbl);
 287         struct bnxt_qplib_rcfw *rcfw = res->rcfw;
 288         int i, free_idx;
 289
 290         if (!sgid_tbl) {
 291                 dev_err(&res->pdev->dev, "SGID table not allocated\n");
 292                 return -EINVAL;
 293         }
 294         /* Do we need a sgid_lock here? */
 295         if (sgid_tbl->active == sgid_tbl->max) {
 296                 dev_err(&res->pdev->dev, "SGID table is full\n");
 297                 return -ENOMEM;
 298         }
 299         free_idx = sgid_tbl->max;
 300         for (i = 0; i < sgid_tbl->max; i++) {
 301                 if (!memcmp(&sgid_tbl->tbl[i], gid, sizeof(*gid)) &&
 302                     sgid_tbl->tbl[i].vlan_id == vlan_id) {
 303                         dev_dbg(&res->pdev->dev,
 304                                 "SGID entry already exist in entry %d!\n", i);
 305                         *index = i;
 306                         return -EALREADY;
 307                 } else if (!memcmp(&sgid_tbl->tbl[i], &bnxt_qplib_gid_zero,
 308                                    sizeof(bnxt_qplib_gid_zero)) &&
 309                            free_idx == sgid_tbl->max) {
 310                         free_idx = i;
 311                 }
 312         }
 313         if (free_idx == sgid_tbl->max) {
 314                 dev_err(&res->pdev->dev,
 315                         "SGID table is FULL but count is not MAX??\n");
 316                 return -ENOMEM;
 317         }
 318         if (update) {
 319                 struct cmdq_add_gid req;
 320                 struct creq_add_gid_resp resp;
 321                 u16 cmd_flags = 0;
 322                 int rc;
 323
 324                 RCFW_CMD_PREP(req, ADD_GID, cmd_flags);
 325
 326                 req.gid[0] = cpu_to_be32(((u32 *)gid->data)[3]);
 327                 req.gid[1] = cpu_to_be32(((u32 *)gid->data)[2]);
 328                 req.gid[2] = cpu_to_be32(((u32 *)gid->data)[1]);
 329                 req.gid[3] = cpu_to_be32(((u32 *)gid->data)[0]);
 330                 /*
 331                  * driver should ensure that all RoCE traffic is always VLAN
 332                  * tagged if RoCE traffic is running on non-zero VLAN ID or
 333                  * RoCE traffic is running on non-zero Priority.
 334                  */
 335                 if ((vlan_id != 0xFFFF) || res->prio) {
 336                         if (vlan_id != 0xFFFF)
 337                                 req.vlan = cpu_to_le16
 338                                 (vlan_id & CMDQ_ADD_GID_VLAN_VLAN_ID_MASK);
 339                         req.vlan |= cpu_to_le16
 340                                         (CMDQ_ADD_GID_VLAN_TPID_TPID_8100 |
 341                                          CMDQ_ADD_GID_VLAN_VLAN_EN);
 342                 }
 343
 344                 /* MAC in network format */
 345                 req.src_mac[0] = cpu_to_be16(((u16 *)smac)[0]);
 346                 req.src_mac[1] = cpu_to_be16(((u16 *)smac)[1]);
 347                 req.src_mac[2] = cpu_to_be16(((u16 *)smac)[2]);
 348
 349                 rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
 350                                                   (void *)&resp, NULL, 0);
 351                 if (rc)
 352                         return rc;
 353                 sgid_tbl->hw_id[free_idx] = le32_to_cpu(resp.xid);
 354         }
 355         /* Add GID to the sgid_tbl */
 356         memcpy(&sgid_tbl->tbl[free_idx], gid, sizeof(*gid));
 357         sgid_tbl->tbl[free_idx].vlan_id = vlan_id;
 358         sgid_tbl->active++;
 359         if (vlan_id != 0xFFFF)
 360                 sgid_tbl->vlan[free_idx] = 1;
 361
 362         dev_dbg(&res->pdev->dev,
 363                 "SGID added hw_id[0x%x] = 0x%x active = 0x%x\n",
 364                  free_idx, sgid_tbl->hw_id[free_idx], sgid_tbl->active);
 365
 366         *index = free_idx;
 367         /* unlock */
 368         return 0;
 369 }
 370
 371 int bnxt_qplib_update_sgid(struct bnxt_qplib_sgid_tbl *sgid_tbl,
 372                            struct bnxt_qplib_gid *gid, u16 gid_idx,
 373                            u8 *smac)
 374 {
 375         struct bnxt_qplib_res *res = to_bnxt_qplib(sgid_tbl,
 376                                                    struct bnxt_qplib_res,
 377                                                    sgid_tbl);
 378         struct bnxt_qplib_rcfw *rcfw = res->rcfw;
 379         struct creq_modify_gid_resp resp;
 380         struct cmdq_modify_gid req;
 381         int rc;
 382         u16 cmd_flags = 0;
 383
 384         RCFW_CMD_PREP(req, MODIFY_GID, cmd_flags);
 385
 386         req.gid[0] = cpu_to_be32(((u32 *)gid->data)[3]);
 387         req.gid[1] = cpu_to_be32(((u32 *)gid->data)[2]);
 388         req.gid[2] = cpu_to_be32(((u32 *)gid->data)[1]);
 389         req.gid[3] = cpu_to_be32(((u32 *)gid->data)[0]);
 390         if (res->prio) {
 391                 req.vlan |= cpu_to_le16
 392                         (CMDQ_ADD_GID_VLAN_TPID_TPID_8100 |
 393                          CMDQ_ADD_GID_VLAN_VLAN_EN);
 394         }
 395
 396         /* MAC in network format */
 397         req.src_mac[0] = cpu_to_be16(((u16 *)smac)[0]);
 398         req.src_mac[1] = cpu_to_be16(((u16 *)smac)[1]);
 399         req.src_mac[2] = cpu_to_be16(((u16 *)smac)[2]);
 400
 401         req.gid_index = cpu_to_le16(gid_idx);
 402
 403         rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
 404                                           (void *)&resp, NULL, 0);
 405         return rc;
 406 }
 407
 408 /* pkeys */
 409 int bnxt_qplib_get_pkey(struct bnxt_qplib_res *res,
 410                         struct bnxt_qplib_pkey_tbl *pkey_tbl, u16 index,
 411                         u16 *pkey)
 412 {
 413         if (index == 0xFFFF) {
 414                 *pkey = 0xFFFF;
 415                 return 0;
 416         }
 417         if (index >= pkey_tbl->max) {
 418                 dev_err(&res->pdev->dev,
 419                         "Index %d exceeded PKEY table max (%d)\n",
 420                         index, pkey_tbl->max);
 421                 return -EINVAL;
 422         }
 423         memcpy(pkey, &pkey_tbl->tbl[index], sizeof(*pkey));
 424         return 0;
 425 }
 426
 427 int bnxt_qplib_del_pkey(struct bnxt_qplib_res *res,
 428                         struct bnxt_qplib_pkey_tbl *pkey_tbl, u16 *pkey,
 429                         bool update)
 430 {
 431         int i, rc = 0;
 432
 433         if (!pkey_tbl) {
 434                 dev_err(&res->pdev->dev, "PKEY table not allocated\n");
 435                 return -EINVAL;
 436         }
 437
 438         /* Do we need a pkey_lock here? */
 439         if (!pkey_tbl->active) {
 440                 dev_err(&res->pdev->dev, "PKEY table has no active entries\n");
 441                 return -ENOMEM;
 442         }
 443         for (i = 0; i < pkey_tbl->max; i++) {
 444                 if (!memcmp(&pkey_tbl->tbl[i], pkey, sizeof(*pkey)))
 445                         break;
 446         }
 447         if (i == pkey_tbl->max) {
 448                 dev_err(&res->pdev->dev,
 449                         "PKEY 0x%04x not found in the pkey table\n", *pkey);
 450                 return -ENOMEM;
 451         }
 452         memset(&pkey_tbl->tbl[i], 0, sizeof(*pkey));
 453         pkey_tbl->active--;
 454
 455         /* unlock */
 456         return rc;
 457 }
 458
 459 int bnxt_qplib_add_pkey(struct bnxt_qplib_res *res,
 460                         struct bnxt_qplib_pkey_tbl *pkey_tbl, u16 *pkey,
 461                         bool update)
 462 {
 463         int i, free_idx, rc = 0;
 464
 465         if (!pkey_tbl) {
 466                 dev_err(&res->pdev->dev, "PKEY table not allocated\n");
 467                 return -EINVAL;
 468         }
 469
 470         /* Do we need a pkey_lock here? */
 471         if (pkey_tbl->active == pkey_tbl->max) {
 472                 dev_err(&res->pdev->dev, "PKEY table is full\n");
 473                 return -ENOMEM;
 474         }
 475         free_idx = pkey_tbl->max;
 476         for (i = 0; i < pkey_tbl->max; i++) {
 477                 if (!memcmp(&pkey_tbl->tbl[i], pkey, sizeof(*pkey)))
 478                         return -EALREADY;
 479                 else if (!pkey_tbl->tbl[i] && free_idx == pkey_tbl->max)
 480                         free_idx = i;
 481         }
 482         if (free_idx == pkey_tbl->max) {
 483                 dev_err(&res->pdev->dev,
 484                         "PKEY table is FULL but count is not MAX??\n");
 485                 return -ENOMEM;
 486         }
 487         /* Add PKEY to the pkey_tbl */
 488         memcpy(&pkey_tbl->tbl[free_idx], pkey, sizeof(*pkey));
 489         pkey_tbl->active++;
 490
 491         /* unlock */
 492         return rc;
 493 }
 494
 495 /* AH */
 496 int bnxt_qplib_create_ah(struct bnxt_qplib_res *res, struct bnxt_qplib_ah *ah,
 497                          bool block)
 498 {
 499         struct bnxt_qplib_rcfw *rcfw = res->rcfw;
 500         struct cmdq_create_ah req;
 501         struct creq_create_ah_resp resp;
 502         u16 cmd_flags = 0;
 503         u32 temp32[4];
 504         u16 temp16[3];
 505         int rc;
 506
 507         RCFW_CMD_PREP(req, CREATE_AH, cmd_flags);
 508
 509         memcpy(temp32, ah->dgid.data, sizeof(struct bnxt_qplib_gid));
 510         req.dgid[0] = cpu_to_le32(temp32[0]);
 511         req.dgid[1] = cpu_to_le32(temp32[1]);
 512         req.dgid[2] = cpu_to_le32(temp32[2]);
 513         req.dgid[3] = cpu_to_le32(temp32[3]);
 514
 515         req.type = ah->nw_type;
 516         req.hop_limit = ah->hop_limit;
 517         req.sgid_index = cpu_to_le16(res->sgid_tbl.hw_id[ah->sgid_index]);
 518         req.dest_vlan_id_flow_label = cpu_to_le32((ah->flow_label &
 519                                         CMDQ_CREATE_AH_FLOW_LABEL_MASK) |
 520                                         CMDQ_CREATE_AH_DEST_VLAN_ID_MASK);
 521         req.pd_id = cpu_to_le32(ah->pd->id);
 522         req.traffic_class = ah->traffic_class;
 523
 524         /* MAC in network format */
 525         memcpy(temp16, ah->dmac, 6);
 526         req.dest_mac[0] = cpu_to_le16(temp16[0]);
 527         req.dest_mac[1] = cpu_to_le16(temp16[1]);
 528         req.dest_mac[2] = cpu_to_le16(temp16[2]);
 529
 530         rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, (void *)&resp,
 531                                           NULL, block);
 532         if (rc)
 533                 return rc;
 534
 535         ah->id = le32_to_cpu(resp.xid);
 536         return 0;
 537 }
 538
 539 void bnxt_qplib_destroy_ah(struct bnxt_qplib_res *res, struct bnxt_qplib_ah *ah,
 540                            bool block)
 541 {
 542         struct bnxt_qplib_rcfw *rcfw = res->rcfw;
 543         struct cmdq_destroy_ah req;
 544         struct creq_destroy_ah_resp resp;
 545         u16 cmd_flags = 0;
 546
 547         /* Clean up the AH table in the device */
 548         RCFW_CMD_PREP(req, DESTROY_AH, cmd_flags);
 549
 550         req.ah_cid = cpu_to_le32(ah->id);
 551
 552         bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, (void *)&resp, NULL,
 553                                      block);
 554 }
 555
 556 /* MRW */
 557 int bnxt_qplib_free_mrw(struct bnxt_qplib_res *res, struct bnxt_qplib_mrw *mrw)
 558 {
 559         struct bnxt_qplib_rcfw *rcfw = res->rcfw;
 560         struct cmdq_deallocate_key req;
 561         struct creq_deallocate_key_resp resp;
 562         u16 cmd_flags = 0;
 563         int rc;
 564
 565         if (mrw->lkey == 0xFFFFFFFF) {
 566                 dev_info(&res->pdev->dev, "SP: Free a reserved lkey MRW\n");
 567                 return 0;
 568         }
 569
 570         RCFW_CMD_PREP(req, DEALLOCATE_KEY, cmd_flags);
 571
 572         req.mrw_flags = mrw->type;
 573
 574         if ((mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE1)  ||
 575             (mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE2A) ||
 576             (mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE2B))
 577                 req.key = cpu_to_le32(mrw->rkey);
 578         else
 579                 req.key = cpu_to_le32(mrw->lkey);
 580
 581         rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, (void *)&resp,
 582                                           NULL, 0);
 583         if (rc)
 584                 return rc;
 585
 586         /* Free the qplib's MRW memory */
 587         if (mrw->hwq.max_elements)
 588                 bnxt_qplib_free_hwq(res->pdev, &mrw->hwq);
 589
 590         return 0;
 591 }
 592
 593 int bnxt_qplib_alloc_mrw(struct bnxt_qplib_res *res, struct bnxt_qplib_mrw *mrw)
 594 {
 595         struct bnxt_qplib_rcfw *rcfw = res->rcfw;
 596         struct cmdq_allocate_mrw req;
 597         struct creq_allocate_mrw_resp resp;
 598         u16 cmd_flags = 0;
 599         unsigned long tmp;
 600         int rc;
 601
 602         RCFW_CMD_PREP(req, ALLOCATE_MRW, cmd_flags);
 603
 604         req.pd_id = cpu_to_le32(mrw->pd->id);
 605         req.mrw_flags = mrw->type;
 606         if ((mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_PMR &&
 607              mrw->flags & BNXT_QPLIB_FR_PMR) ||
 608             mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE2A ||
 609             mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE2B)
 610                 req.access = CMDQ_ALLOCATE_MRW_ACCESS_CONSUMER_OWNED_KEY;
 611         tmp = (unsigned long)mrw;
 612         req.mrw_handle = cpu_to_le64(tmp);
 613
 614         rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
 615                                           (void *)&resp, NULL, 0);
 616         if (rc)
 617                 return rc;
 618
 619         if ((mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE1)  ||
 620             (mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE2A) ||
 621             (mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE2B))
 622                 mrw->rkey = le32_to_cpu(resp.xid);
 623         else
 624                 mrw->lkey = le32_to_cpu(resp.xid);
 625         return 0;
 626 }
 627
 628 int bnxt_qplib_dereg_mrw(struct bnxt_qplib_res *res, struct bnxt_qplib_mrw *mrw,
 629                          bool block)
 630 {
 631         struct bnxt_qplib_rcfw *rcfw = res->rcfw;
 632         struct cmdq_deregister_mr req;
 633         struct creq_deregister_mr_resp resp;
 634         u16 cmd_flags = 0;
 635         int rc;
 636
 637         RCFW_CMD_PREP(req, DEREGISTER_MR, cmd_flags);
 638
 639         req.lkey = cpu_to_le32(mrw->lkey);
 640         rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
 641                                           (void *)&resp, NULL, block);
 642         if (rc)
 643                 return rc;
 644
 645         /* Free the qplib's MR memory */
 646         if (mrw->hwq.max_elements) {
 647                 mrw->va = 0;
 648                 mrw->total_size = 0;
 649                 bnxt_qplib_free_hwq(res->pdev, &mrw->hwq);
 650         }
 651
 652         return 0;
 653 }
 654
 655 int bnxt_qplib_reg_mr(struct bnxt_qplib_res *res, struct bnxt_qplib_mrw *mr,
 656                       u64 *pbl_tbl, int num_pbls, bool block, u32 buf_pg_size)
 657 {
 658         struct bnxt_qplib_rcfw *rcfw = res->rcfw;
 659         struct cmdq_register_mr req;
 660         struct creq_register_mr_resp resp;
 661         u16 cmd_flags = 0, level;
 662         int pg_ptrs, pages, i, rc;
 663         dma_addr_t **pbl_ptr;
 664         u32 pg_size;
 665
 666         if (num_pbls) {
 667                 /* Allocate memory for the non-leaf pages to store buf ptrs.
 668                  * Non-leaf pages always uses system PAGE_SIZE
 669                  */
 670                 pg_ptrs = roundup_pow_of_two(num_pbls);
 671                 pages = pg_ptrs >> MAX_PBL_LVL_1_PGS_SHIFT;
 672                 if (!pages)
 673                         pages++;
 674
 675                 if (pages > MAX_PBL_LVL_1_PGS) {
 676                         dev_err(&res->pdev->dev,
 677                                 "SP: Reg MR pages requested (0x%x) exceeded max (0x%x)\n",
 678                                 pages, MAX_PBL_LVL_1_PGS);
 679                         return -ENOMEM;
 680                 }
 681                 /* Free the hwq if it already exist, must be a rereg */
 682                 if (mr->hwq.max_elements)
 683                         bnxt_qplib_free_hwq(res->pdev, &mr->hwq);
 684
 685                 mr->hwq.max_elements = pages;
 686                 /* Use system PAGE_SIZE */
 687                 rc = bnxt_qplib_alloc_init_hwq(res->pdev, &mr->hwq, NULL,
 688                                                &mr->hwq.max_elements,
 689                                                PAGE_SIZE, 0, PAGE_SIZE,
 690                                                HWQ_TYPE_CTX);
 691                 if (rc) {
 692                         dev_err(&res->pdev->dev,
 693                                 "SP: Reg MR memory allocation failed\n");
 694                         return -ENOMEM;
 695                 }
 696                 /* Write to the hwq */
 697                 pbl_ptr = (dma_addr_t **)mr->hwq.pbl_ptr;
 698                 for (i = 0; i < num_pbls; i++)
 699                         pbl_ptr[PTR_PG(i)][PTR_IDX(i)] =
 700                                 (pbl_tbl[i] & PAGE_MASK) | PTU_PTE_VALID;
 701         }
 702
 703         RCFW_CMD_PREP(req, REGISTER_MR, cmd_flags);
 704
 705         /* Configure the request */
 706         if (mr->hwq.level == PBL_LVL_MAX) {
 707                 /* No PBL provided, just use system PAGE_SIZE */
 708                 level = 0;
 709                 req.pbl = 0;
 710                 pg_size = PAGE_SIZE;
 711         } else {
 712                 level = mr->hwq.level + 1;
 713                 req.pbl = cpu_to_le64(mr->hwq.pbl[PBL_LVL_0].pg_map_arr[0]);
 714         }
 715         pg_size = buf_pg_size ? buf_pg_size : PAGE_SIZE;
 716         req.log2_pg_size_lvl = (level << CMDQ_REGISTER_MR_LVL_SFT) |
 717                                ((ilog2(pg_size) <<
 718                                  CMDQ_REGISTER_MR_LOG2_PG_SIZE_SFT) &
 719                                 CMDQ_REGISTER_MR_LOG2_PG_SIZE_MASK);
 720         req.log2_pbl_pg_size = cpu_to_le16(((ilog2(PAGE_SIZE) <<
 721                                  CMDQ_REGISTER_MR_LOG2_PBL_PG_SIZE_SFT) &
 722                                 CMDQ_REGISTER_MR_LOG2_PBL_PG_SIZE_MASK));
 723         req.access = (mr->flags & 0xFFFF);
 724         req.va = cpu_to_le64(mr->va);
 725         req.key = cpu_to_le32(mr->lkey);
 726         req.mr_size = cpu_to_le64(mr->total_size);
 727
 728         rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req,
 729                                           (void *)&resp, NULL, block);
 730         if (rc)
 731                 goto fail;
 732
 733         return 0;
 734
 735 fail:
 736         if (mr->hwq.max_elements)
 737                 bnxt_qplib_free_hwq(res->pdev, &mr->hwq);
 738         return rc;
 739 }
 740
 741 int bnxt_qplib_alloc_fast_reg_page_list(struct bnxt_qplib_res *res,
 742                                         struct bnxt_qplib_frpl *frpl,
 743                                         int max_pg_ptrs)
 744 {
 745         int pg_ptrs, pages, rc;
 746
 747         /* Re-calculate the max to fit the HWQ allocation model */
 748         pg_ptrs = roundup_pow_of_two(max_pg_ptrs);
 749         pages = pg_ptrs >> MAX_PBL_LVL_1_PGS_SHIFT;
 750         if (!pages)
 751                 pages++;
 752
 753         if (pages > MAX_PBL_LVL_1_PGS)
 754                 return -ENOMEM;
 755
 756         frpl->hwq.max_elements = pages;
 757         rc = bnxt_qplib_alloc_init_hwq(res->pdev, &frpl->hwq, NULL,
 758                                        &frpl->hwq.max_elements, PAGE_SIZE, 0,
 759                                        PAGE_SIZE, HWQ_TYPE_CTX);
 760         if (!rc)
 761                 frpl->max_pg_ptrs = pg_ptrs;
 762
 763         return rc;
 764 }
 765
 766 int bnxt_qplib_free_fast_reg_page_list(struct bnxt_qplib_res *res,
 767                                        struct bnxt_qplib_frpl *frpl)
 768 {
 769         bnxt_qplib_free_hwq(res->pdev, &frpl->hwq);
 770         return 0;
 771 }
 772
 773 int bnxt_qplib_map_tc2cos(struct bnxt_qplib_res *res, u16 *cids)
 774 {
 775         struct bnxt_qplib_rcfw *rcfw = res->rcfw;
 776         struct cmdq_map_tc_to_cos req;
 777         struct creq_map_tc_to_cos_resp resp;
 778         u16 cmd_flags = 0;
 779
 780         RCFW_CMD_PREP(req, MAP_TC_TO_COS, cmd_flags);
 781         req.cos0 = cpu_to_le16(cids[0]);
 782         req.cos1 = cpu_to_le16(cids[1]);
 783
 784         return bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, (void *)&resp,
 785                                                 NULL, 0);
 786 }
 787
 788 int bnxt_qplib_get_roce_stats(struct bnxt_qplib_rcfw *rcfw,
 789                               struct bnxt_qplib_roce_stats *stats)
 790 {
 791         struct cmdq_query_roce_stats req;
 792         struct creq_query_roce_stats_resp resp;
 793         struct bnxt_qplib_rcfw_sbuf *sbuf;
 794         struct creq_query_roce_stats_resp_sb *sb;
 795         u16 cmd_flags = 0;
 796         int rc = 0;
 797
 798         RCFW_CMD_PREP(req, QUERY_ROCE_STATS, cmd_flags);
 799
 800         sbuf = bnxt_qplib_rcfw_alloc_sbuf(rcfw, sizeof(*sb));
 801         if (!sbuf) {
 802                 dev_err(&rcfw->pdev->dev,
 803                         "SP: QUERY_ROCE_STATS alloc side buffer failed\n");
 804                 return -ENOMEM;
 805         }
 806
 807         sb = sbuf->sb;
 808         req.resp_size = sizeof(*sb) / BNXT_QPLIB_CMDQE_UNITS;
 809         rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, (void *)&resp,
 810                                           (void *)sbuf, 0);
 811         if (rc)
 812                 goto bail;
 813         /* Extract the context from the side buffer */
 814         stats->to_retransmits = le64_to_cpu(sb->to_retransmits);
 815         stats->seq_err_naks_rcvd = le64_to_cpu(sb->seq_err_naks_rcvd);
 816         stats->max_retry_exceeded = le64_to_cpu(sb->max_retry_exceeded);
 817         stats->rnr_naks_rcvd = le64_to_cpu(sb->rnr_naks_rcvd);
 818         stats->missing_resp = le64_to_cpu(sb->missing_resp);
 819         stats->unrecoverable_err = le64_to_cpu(sb->unrecoverable_err);
 820         stats->bad_resp_err = le64_to_cpu(sb->bad_resp_err);
 821         stats->local_qp_op_err = le64_to_cpu(sb->local_qp_op_err);
 822         stats->local_protection_err = le64_to_cpu(sb->local_protection_err);
 823         stats->mem_mgmt_op_err = le64_to_cpu(sb->mem_mgmt_op_err);
 824         stats->remote_invalid_req_err = le64_to_cpu(sb->remote_invalid_req_err);
 825         stats->remote_access_err = le64_to_cpu(sb->remote_access_err);
 826         stats->remote_op_err = le64_to_cpu(sb->remote_op_err);
 827         stats->dup_req = le64_to_cpu(sb->dup_req);
 828         stats->res_exceed_max = le64_to_cpu(sb->res_exceed_max);
 829         stats->res_length_mismatch = le64_to_cpu(sb->res_length_mismatch);
 830         stats->res_exceeds_wqe = le64_to_cpu(sb->res_exceeds_wqe);
 831         stats->res_opcode_err = le64_to_cpu(sb->res_opcode_err);
 832         stats->res_rx_invalid_rkey = le64_to_cpu(sb->res_rx_invalid_rkey);
 833         stats->res_rx_domain_err = le64_to_cpu(sb->res_rx_domain_err);
 834         stats->res_rx_no_perm = le64_to_cpu(sb->res_rx_no_perm);
 835         stats->res_rx_range_err = le64_to_cpu(sb->res_rx_range_err);
 836         stats->res_tx_invalid_rkey = le64_to_cpu(sb->res_tx_invalid_rkey);
 837         stats->res_tx_domain_err = le64_to_cpu(sb->res_tx_domain_err);
 838         stats->res_tx_no_perm = le64_to_cpu(sb->res_tx_no_perm);
 839         stats->res_tx_range_err = le64_to_cpu(sb->res_tx_range_err);
 840         stats->res_irrq_oflow = le64_to_cpu(sb->res_irrq_oflow);
 841         stats->res_unsup_opcode = le64_to_cpu(sb->res_unsup_opcode);
 842         stats->res_unaligned_atomic = le64_to_cpu(sb->res_unaligned_atomic);
 843         stats->res_rem_inv_err = le64_to_cpu(sb->res_rem_inv_err);
 844         stats->res_mem_error = le64_to_cpu(sb->res_mem_error);
 845         stats->res_srq_err = le64_to_cpu(sb->res_srq_err);
 846         stats->res_cmp_err = le64_to_cpu(sb->res_cmp_err);
 847         stats->res_invalid_dup_rkey = le64_to_cpu(sb->res_invalid_dup_rkey);
 848         stats->res_wqe_format_err = le64_to_cpu(sb->res_wqe_format_err);
 849         stats->res_cq_load_err = le64_to_cpu(sb->res_cq_load_err);
 850         stats->res_srq_load_err = le64_to_cpu(sb->res_srq_load_err);
 851         stats->res_tx_pci_err = le64_to_cpu(sb->res_tx_pci_err);
 852         stats->res_rx_pci_err = le64_to_cpu(sb->res_rx_pci_err);
 853         if (!rcfw->init_oos_stats) {
 854                 rcfw->oos_prev = le64_to_cpu(sb->res_oos_drop_count);
 855                 rcfw->init_oos_stats = 1;
 856         } else {
 857                 stats->res_oos_drop_count +=
 858                                 (le64_to_cpu(sb->res_oos_drop_count) -
 859                                  rcfw->oos_prev) & BNXT_QPLIB_OOS_COUNT_MASK;
 860                 rcfw->oos_prev = le64_to_cpu(sb->res_oos_drop_count);
 861         }
 862
 863 bail:
 864         bnxt_qplib_rcfw_free_sbuf(rcfw, sbuf);
 865         return rc;
 866 }